Regardless of which investment strategy you decide to pursue to earn residual income, an essential part of the investment process is careful due diligence of each opportunity as it arises and working hard to remove any pre-existing biases. Take your time to figure out which approach makes the most sense for you, and carefully calculate your residual income goals. Remember that diversification using different asset classes is one of the most effective ways to build stable and viable streams of residual income, and a profitable portfolio.
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The main advantage of the residual income metric is that it measures excess return earned by a department in absolute terms. A positive residual income means that the department has met the minimum return requirement while a negative residual income means that the department has failed to meet it. Return on investment (ROI) is another metric which measures return in relative terms.
Residual income is calculated as net income less a charge for the cost of capital. The charge is known as the equity charge and is calculated as the value of equity capital multiplied by the cost of equity or the required rate of return on equity. Given the opportunity cost of equity, a company can have positive net income but negative residual income.